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Error code reference

Midea Washer Error Code E20

Main PCB cannot get pump signal; water level doesn't change within 3 minutes with pump started (drain…

Midea codesMidea washer codes

Main PCB cannot get pump signal; water level doesn't change within 3 minutes with pump started (drain failure).

First step from the service manual

Check the pump and the inner wire of the pump.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What E20 means on a Midea washer

The E20 error code on a Midea washer indicates a drain failure detected by the main PCB. Specifically, the control board monitors the water level sensor during a drain cycle. If the water level does not change within 3 minutes after the drain pump has been started, the board determines that pumping is not occurring and triggers E20. The board is essentially looking for confirmation that water is being expelled, and when that signal is absent or unchanged, it halts the cycle and displays the fault.

The drain pump and its internal wiring are the primary suspects when E20 appears. The pump motor may have failed electrically or mechanically, preventing it from turning. The internal wiring of the pump, including connections to the PCB, can develop breaks, corrosion, or loose terminals that interrupt the circuit. A blocked pump filter or impeller jammed with debris such as lint, coins, or small garments can also prevent water movement even if the pump motor itself receives power.

Beyond the pump assembly, the water level pressure sensor or its connecting hose can contribute to this fault. If the pressure sensor is not accurately reporting water level changes, the PCB may never register a successful drain even if some pumping is occurring. The main PCB itself can also be at fault if it fails to deliver proper voltage to the pump circuit, though board failure is the least common cause and should only be considered after all other components have been ruled out.

Source: manufacturer service documentation.

Common causes of E20

  1. 01

    Clogged pump filter or blocked impeller

    Wiring / connection

    Debris such as coins, lint, or small clothing items can jam the pump impeller or block the filter, preventing water from being expelled. Check and clean the pump filter access panel, typically located at the lower front of the washer.

  2. 02

    Faulty or failed drain pump motor

    Part replacement

    The pump motor may have burned out or seized, meaning it receives a signal from the PCB but cannot physically move water. Listen for a humming sound during the drain cycle with no water movement, which can indicate a seized pump.

  3. 03

    Broken or disconnected pump wiring

    Wiring / connection

    The internal wiring connecting the drain pump to the main PCB can develop breaks, loose connector pins, or corrosion that interrupt the circuit. Inspect the wire harness running to the pump for visible damage and check that all connectors are fully seated.

  4. 04

    Faulty water level pressure sensor or hose

    Part replacement

    If the pressure sensor or its connecting air hose is defective or disconnected, the PCB cannot accurately read water level changes during draining and may falsely trigger E20. Check the hose for cracks, kinks, or disconnection from the drum tub.

  5. 05

    Main PCB failure

    Part replacement

    In rare cases, the control board itself may fail to deliver proper voltage to the pump circuit, making a functional pump appear non-operational. This should only be considered after the pump, wiring, and sensor have all been tested and confirmed to be working correctly.

See the test procedure for each cause

Frequently asked questions about E20

What does E20 mean on a Midea washer?
E20 on a Midea washer means the main PCB detected a drain failure. The control board started the drain pump but measured no change in water level within 3 minutes, indicating water is not being removed from the drum. The washer halts the cycle and displays E20 to alert you to the problem.
How do I fix E20 on my Midea washer?
Start by checking the drain pump filter for blockages, as clogged debris is the most common cause. Next, inspect the pump wiring and connectors for damage or loose connections. If the filter is clear and wiring looks intact, the pump motor itself may need testing or replacement. A faulty water level pressure sensor or its air hose should also be inspected if the pump checks out.
Will resetting the washer clear the E20 error code?
A reset may temporarily clear the E20 code and allow the washer to attempt another cycle, but the error will return if the underlying drain problem is not resolved. To reset, unplug the washer for a few minutes and then reconnect power. If E20 reappears as soon as the washer tries to drain, the root cause still needs to be diagnosed and repaired.
Is it safe to use my Midea washer when E20 is displayed?
You should not continue running the washer while E20 is active. The machine has stopped because water is not draining properly, and forcing additional cycles risks leaving standing water in the drum, potential overflow, or added strain on the pump and other components. Address the drain issue before resuming normal use.
How much does it cost to repair a Midea washer E20 drain fault?
Repair costs vary depending on the cause. If only a clogged filter needs cleaning, the repair can be free or very low cost if done yourself. Replacing a faulty drain pump typically runs between $50 and $150 for the part, plus labor if a technician is hired. A new water level pressure sensor is generally in the $20 to $60 range, while main PCB replacement is the most expensive scenario, often $100 to $250 or more for the part alone.

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